Car track crossing



NOV. 6, 1934. v THEODQS 1,979,583

CAR TRACK CROSS ING Filed March 21, 1952 ATTORNEYS. I

INVENT VA/VdEL 77/ patented Nov. 6, 1934 UNITED STATES PATENT orricr.

CAR TRACK CROSSING Vangel Theodos, San Francisco, Calif. Application March 21, 1932, Serial No. 600,275

6 Claims. (01. -246460) This invention relates to railway track crossings and has for its objects an improved construction of the so-called hard center track crossings. One object of the invention is the provision of a hard center wearing block which can easily be inserted or renewed, another object is an improved means of locking the block in place, and still another object is the provision of means for overcoming all Vibration of the block relative to the rails and its resulting tendency to loosen the block to the point of rattling or pounding. Other objects will appear in the following specification and accompanying drawing.

In the drawing Fig. 1 is a plan view of my improved track crossing. i p

Fig. 2 is a longitudinal sectional view of the crossing taken along the line 2- -2 of Fig. 1.

Fig. 3 is a cross sectional View of the crossing taken from the line 33 of Fig. 1.

Fig. 4 is a perspective view of one of the drive pins which hold the hard center block in place in the socket of the track casting.

In further detail the drawing shows a rail- Way crossing casting l of two tracks 2, 2 extending at an angle of 90 with one another and formed with an elongated socket extending over the intersecting points of the rails and as designated by the heavy line 3, and in which is inserted a solid hard cast block of steel or chilled iron 4, which may be reversed end for end in the socket.

The rail socket with its stub rails 2 projecting therefrom may be made to embrace any desired number of rails for single or double track railways. The socket is preferably of elongated form (about a third longer than wide) and has very heavy side walls 5 and end walls 6 and bottom wall 7 forming a rectangular socket 4o tapered just a trifle smaller as it extends downward. This socket is considerably reduced in width about half way down so as to provide two horizontal shelves or shoulders 17 to form the main support of the block 4 which is shaped on top to continue the track treads and is of a form to fit freely within the socket so as to leave about a quarter inch space under its lower surface, and a trifle less around the lower part of its side wallstap'ering up to just a small crack around the upper edge designated by the black line 3, or it may touch along the upper portion. This space under and around the block is for the purpose of filling with a hard grade of Babbitt metal 8 as will later be described.

The shelves 17 along the sides are notched out or relieved in the middle as indicated at 9 to insure better seating of the cast parts without machining and to bring a metal to metal support for the block directly under each point of wheel pounding, also to insure easier flow of the Babbitt filler in the slight crack along the sides. I

At opposite ends the block is abruptly increased in length in the form of end lugs 4 and the socket is similarly formed to suit, and an- 5 gularly extending through coinciding holes in both lugs and socket end walls are looking pins 10. These pins are of round steel, split on one end as at 11, formed with a squared-off stop lug l2, and a driving lug 13 to adapt the pins to be driven in tightly with a sledge, and after which the ends 11. are spread to lock the pins in place as shown in Figs. 1 and 2 and the driving lugs are chipped or ground off flush with the top of the block. v

To assist in lowering the block into place or for withdrawing same in case of removal, I provide a couple of tapped holes 14 to temporarily receive eyebolts, which may be replaced with a brass headless set screw or filled with pitch or babbitt to prevent rusting for later use if desired.

Also, for the twofold purpose of providing pouring openings for the babbitt as well as a pinch bar entry for prying out the block I pro-- vide tapered channels 15 at opposite ends of the socket and cooperating notches 16 on the adjacent wall of the block for the end of a pinch bar, it being understood that the babbitt would have to be chipped out at this point first before the bar could be introduced.

In installing the blocks in crossings in place, the block and socket are both heated by any means until all moisture is driven out, the block is then lowered into place, permitted to cool somewhat, the pins are driven in place, and molten babbitt is quickly poured in the openings 15 until it rises in the crack all around the casting, or except such points as may come in contact. When the block is cool the pins may 10, 1

be tapped with a sledge to see if snug, then spread open at the ends, and the driving lugs ground 01f.

The blocks, are reversible in the sockets so that they can be reversed if one line of travel 10? shows more wear than the other.

I am aware that similar hard center or socket and block type of rail crossings have been made and used before my construction herein described, but it is to overcome the faults devel- 1}!) oped in such crossings that I devised the construction set forth, the outstanding features of which are the side shelves on which the block is suspended, the combined support of babbitt under the whole block and in the interstices to prevent the starting of destructive vibration, the elongated form of the block with drive pins at opposite ends, the long bearing secured on these drive pins by reason of the extra length of the block, the form of the drive pins, and the Babbitt-channelling of the members to properly receive the molten metal.

I claim:

1. A railway track crossing comprising stubrails with an open socket occupying their point of crossing, a block of hard metal in said socket continuing the tread of the rails in both directions, and securing pins at opposite points on the block extending at an angle down through the edges of the block and the wall of the socket, said pins provided with adriving lug adapted to be cut off at the top of the block.

2. A railway track crossing comprising stub rails with an open socket occupying their point of crossing, a block of hard metal in said socket continuing the tread of the rails in both directions, and securing pins at opposite points on the block extending at an angle down through the edges of the block and the wall of the socket,

said pins provided with a stop lug adapted to limit the penetration of the pin.

3. A railway track crossing comprising stub rails with an open socket occupying their point of crossing, a block of hard metal in said socket continuing the tread of the rails in both directions, securing pins at opposite points on the block extending at an angle down through the edges of the block and the wall'of the socket,

said pins provided with a stop lug adapted to limit the penetration of the pin, and means to prevent the pins withdrawal, so as to lock it from moving in either direction.

4. A railway track crossing comprising stub rails formed with an open socket intercepting the point of their crossing, the socket formed relatively deep and with supporting shelves adjacent each corner, a renewable crossing block formed to continue the treads of the rails to the crossing point and to fit into the socket and rest upon said shelves, an easily fusible metal filling the interstices between the walls of the socket and said block, pouring channels for molten metal formed in said socket and the block provided with cooperating pinch bar notches.

5. A railway track crossing comprising a casti-ng forming stub rails provided with an open socket occupying their point of crossing, a block of hard metal in said socket continuing the tread of the rails in both directions, a securing pin extending at an angle down through the edge of the block and outwardly therefrom through the wall of the socket, said pin being in one piece whereby it is adapted to be inserted into and withdrawn from the crossing as a unit.

6. A railway track crossing comprising a casting forming stub rails provided with an open socket occupying their point of crossing, a block of hard metal in said socket continuing the tread of the rails in both directions, a securing pin extending at an angle down through the edge of the block and outwardly therefrom through the wall of the socket, said pin being in one piece whereby it is adapted to be inserted into and withdrawn from the crossing as a unit, and means formed on said pin arranged and adapted to coact with the wall of the socket for positioning the pin with its upper end substantially flush with the upper surface of the crossing.

VANGEL THEODOS. 

